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annotate liboctave/fDiagMatrix.h @ 14348:95c43fc8dbe1 stable rc-3-6-1-0

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3.6.1 release candidate 0 * configure.ac (AC_INIT): Version is now 3.6.1-rc0. (OCTAVE_RELEASE_DATE): Now 2012-02-07. * liboctave/Makefile.am: Bump liboctave revision version. * src/Makefile.am: Bump liboctave revision version.
author John W. Eaton <jwe@octave.org>
date Thu, 09 Feb 2012 11:25:04 -0500
parents 72c96de7a403
children 460a3c6d8bf1
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1 /*
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2
14138
72c96de7a403 maint: update copyright notices for 2012
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3 Copyright (C) 1994-2012 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if !defined (octave_FloatDiagMatrix_h)
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24 #define octave_FloatDiagMatrix_h 1
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25
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26 #include "MDiagArray2.h"
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27
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28 #include "fRowVector.h"
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29 #include "fColVector.h"
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30 #include "DET.h"
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31
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32 #include "mx-defs.h"
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33
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34 class
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35 OCTAVE_API
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36 FloatDiagMatrix : public MDiagArray2<float>
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37 {
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38 friend class FloatSVD;
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39 friend class FloatComplexSVD;
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40
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41 public:
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42
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43 FloatDiagMatrix (void) : MDiagArray2<float> () { }
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44
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45 FloatDiagMatrix (octave_idx_type r, octave_idx_type c) : MDiagArray2<float> (r, c) { }
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46
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47 FloatDiagMatrix (octave_idx_type r, octave_idx_type c, float val) : MDiagArray2<float> (r, c, val) { }
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48
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49 FloatDiagMatrix (const FloatDiagMatrix& a) : MDiagArray2<float> (a) { }
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50
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51 FloatDiagMatrix (const MDiagArray2<float>& a) : MDiagArray2<float> (a) { }
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52
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53 template <class U>
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54 FloatDiagMatrix (const DiagArray2<U>& a) : MDiagArray2<float> (a) { }
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55
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56 explicit FloatDiagMatrix (const Array<double>& a) : MDiagArray2<float> (a) { }
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57
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58 FloatDiagMatrix (const Array<float>& a, octave_idx_type r, octave_idx_type c)
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59 : MDiagArray2<float> (a, r, c) { }
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60
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61 FloatDiagMatrix& operator = (const FloatDiagMatrix& a)
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62 {
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63 MDiagArray2<float>::operator = (a);
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64 return *this;
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65 }
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66
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67 bool operator == (const FloatDiagMatrix& a) const;
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68 bool operator != (const FloatDiagMatrix& a) const;
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69
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70 FloatDiagMatrix& fill (float val);
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71 FloatDiagMatrix& fill (float val, octave_idx_type beg, octave_idx_type end);
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72 FloatDiagMatrix& fill (const FloatColumnVector& a);
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73 FloatDiagMatrix& fill (const FloatRowVector& a);
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74 FloatDiagMatrix& fill (const FloatColumnVector& a, octave_idx_type beg);
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75 FloatDiagMatrix& fill (const FloatRowVector& a, octave_idx_type beg);
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76
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77 FloatDiagMatrix transpose (void) const { return MDiagArray2<float>::transpose(); }
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78 FloatDiagMatrix abs (void) const;
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79
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80 friend OCTAVE_API FloatDiagMatrix real (const FloatComplexDiagMatrix& a);
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81 friend OCTAVE_API FloatDiagMatrix imag (const FloatComplexDiagMatrix& a);
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82
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83 // resize is the destructive analog for this one
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84
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85 FloatMatrix extract (octave_idx_type r1, octave_idx_type c1, octave_idx_type r2, octave_idx_type c2) const;
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86
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87 // extract row or column i.
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88
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89 FloatRowVector row (octave_idx_type i) const;
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90 FloatRowVector row (char *s) const;
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91
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92 FloatColumnVector column (octave_idx_type i) const;
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93 FloatColumnVector column (char *s) const;
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94
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95 FloatDiagMatrix inverse (void) const;
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96 FloatDiagMatrix inverse (octave_idx_type& info) const;
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97 FloatDiagMatrix pseudo_inverse (void) const;
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98
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99 // other operations
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100
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101 FloatColumnVector diag (octave_idx_type k = 0) const
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102 { return MDiagArray2<float>::diag (k); }
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103
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104 FloatDET determinant (void) const;
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105 float rcond (void) const;
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106
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107 // i/o
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108
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109 friend OCTAVE_API std::ostream& operator << (std::ostream& os, const FloatDiagMatrix& a);
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110
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111 };
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112
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113 OCTAVE_API FloatDiagMatrix real (const FloatComplexDiagMatrix& a);
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114 OCTAVE_API FloatDiagMatrix imag (const FloatComplexDiagMatrix& a);
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115
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116 // diagonal matrix by diagonal matrix -> diagonal matrix operations
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117
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118 OCTAVE_API FloatDiagMatrix
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119 operator * (const FloatDiagMatrix& a, const FloatDiagMatrix& b);
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120
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121 MDIAGARRAY2_FORWARD_DEFS (MDiagArray2, FloatDiagMatrix, float)
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122
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123 #endif